The graphite electrode is mainly made of petroleum coke and needle coke with coal pitch as the binder through calcination, batching, kneading, pressing, roasting, graphenization and machining.
Graphite electrode is a conductor which releases electric energy to heat and melt the charge in the form of arc in electric arc furnace. According to its quality index, it can be divided into ordinary power graphite electrode, high power graphite electrode and ultra-high power graphite electrode.
The main raw material of graphite electrode production is petroleum coke, ordinary power graphite electrode can add a small amount of asphalt coke, petroleum coke and asphalt coke sulfur content can not exceed 0.5%. Needle coke is also needed to produce high power or ultra high power graphite electrodes.In the production process, petroleum coke and bitumen coke should meet the relevant quality standards.
Main uses of graphite electrode:
- Used for arc steel furnace.Electric steelmaking is a major use of graphite electrodes.The output of electric furnace steel in China accounts for about 18% of the crude steel output, and the graphite electrode used in steelmaking accounts for 70% to 80% of the total use of graphite electrode.Electric furnace steelmaking is carried out by using the graphite electrode to introduce current into the furnace and the high-temperature heat source generated by electric arc between the electric extremity and the charge.
- Used for mineral heat electric furnace.arc furnace is mainly used in the production of industrial yellow phosphorus and silicon, etc., its characteristic is the lower part of the conductive electrode buried in furnace charge, arc formed within the material layer, and use the furnace charge itself from the resistance of the heat energy to heating furnace charge, one of the high current density required arc furnace with graphite electrode, such as silicon 1t per production to consumption of graphite electrode is about 100kg, per 1t yellow phosphorus production to consumption of graphite electrode, about 40kg.
- Used for resistance furnace.The graphitization furnace for producing graphite products, the melting furnace for melting glass and the electric furnace for producing silicon carbide all belong to the resistance furnace. The materials in the furnace are not only the heating resistance but also the heated object. Generally, the graphite electrode for conducting electricity is embedded in the furnace head wall at the end of the resistance furnace and used for the discontinuous consumption of the graphite electrode here.
- Used for preparing special-shaped graphite products.Graphite electrode blank is also used for processing various crucible, mold, boat dish and heating body and other shaped graphite products.For example, in the quartz glass industry, 10t of graphite electrode billet is required for every 1t of electric fuse.Each production of 1t quartz brick requires 100kg of graphite electrode blank.
Zhengzhou Rongsheng Kiln Refractory Co.,Ltd. is quality graphite electrode manufacturer,the production experience is rich, the sale spreads all over the world,strong technical force.Welcome customers to consult, purchase, we will provide you with the most professional services.